The first Sunday after the Feast of Holy Pentecost is observed by the Orthodox Church as the Sunday of All Saints.  This day has been designated as a commemoration of all of the Saints, all the Righteous, the Prophets, Apostles, Martyrs, Confessors, Shepherds, Teachers, and Holy Monastics, both men and women alike, known and unknown, who have been added to the choirs of the Saints and shall be added, from the time of Adam until the end of the world, who have been perfected in piety and have glorified God by their holy lives.